New York Laws
Part 1 - Fiduciaries: Powers, Duties and Limitations
11-1.4 - Validity of Execution of Power to Sell, Mortgage or Lease Real Property by Less Than All Qualifying Executors

property by less than all qualifying executors

Any deed, mortgage or lease duly executed by one or more, but not all,
of the executors or trustees who qualified conveys the full title and
interest of the testator, and is as effective as if all the executors or
trustees who qualified had joined in the execution thereof, when ten
years have elapsed since the recording of such deed, mortgage or lease
in the county where the property affected is situated; saving, however,
the rights of every grantee, mortgagee or lessee, in good faith and for
a valuable consideration, deriving title under an instrument executed by
all the executors or trustees who qualified to the same property or any
part thereof, whose deed, mortgage or lease is duly recorded before such
period of ten years has elapsed.

Structure New York Laws